[legion]

When handloading .38 special and .32 S&W long, I have a system in place to help me avoid double loads:

1) Primed cartridges are placed face-down in the reloading tray. They are flipped face-up when they receive powder. (This helps me keep track of where I am on the tray.)

2) I use an automatic digital scale. It tells me how many times it has dispensed a given load. When it tells me it has dispensed 20 times, I better be on the 20th shell. Step #1 helps me know this.

3) After a whole tray receives its powder, I look down the case neck of each shell on the entire tray, moving up and down the grid so that every case is seen. A double-load is easy to spot as the powder sits MUCH higher.

I have caught mistakes with all three methods above. I have never fired a double-charge that I know of.